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        <h1>
            Multicast
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        <h2>Multicast Introduction</h2>
        <p>&nbsp;</p>
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            Multicast is a transmission mode of data packet. When there is multiple-host to receive the same data packet, multiple-cast is the best option to reduce the broad width and the CPU load.  The source host can just send out one data to transit. This function also depends on the relationship of the group member and group of the outer.
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        <h2>Multicast Setup</h2>
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            Here you can set multicast IP address(D-type address-224.0.0.0~239.255.255.255).
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            Reserved local multicast address： <b>224.0.0.0~224.0.0.255</b>
            .
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            Manage address range: <b>239.0.0.0~239.255.255.255</b>
            .
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            Multicast port ranges:
            <b>1025~65534</b>.
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            <b>System goes to the login interface after you successfully modified multiple-cast address or port</b> 
            .
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        <p>&nbsp;</p>
        <h2>Operation</h2>
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            Open the Live and select the Multicast from the protocol dropdown list. You can view the monitor video via the multicast mode.
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        <p>&nbsp;</p>
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